Timeline... The Year Long Before Ouranos Descend...
Year, 4,535 (Earlier)...
On a beautiful sunny day. Not!
The time should be the time where the sun should be shining bright and hanging onto the sky can't be seen!
The sky filled with dark clouds. Not!
Black smoke rose up into the sky, gathering as they covered the sun's view from the ground. Disgusting looking figures runs on the ground whilst some are flying around.
The beautiful ground, mountains, flowers, and trees. Not!
The ground is dyed red, while someplace are black. Trees burning, no flowers can be seen swaying with the wind which is filled with the smell of rotting and blood.
The disgusting looking figures on the ground running and flying seems to be, playing?
JANAI!!!
They are fighting. Killing each other and seemingly eating something from those they killed?
The thing they are eating seems like a rock but not exactly a rock for they gave light in various colors. Those who ate a rock-like thing from those they killed who disappeared into a form of a black-like substance became stronger.
Something doesn't seem right.
Are they killing each other and eating as they become stronger?
Thought the two figures who are floating up high into the sky.
A bird that looked like a chicken having the length of 8 meters saw the duo. The bird flew over them as others followed with their mouths wide open that's filled with thorny teeth rushed at them, seemingly wanting to eat the two figures floating into the sky.
"Hmm?" toned out a handsome young man noticing the chickens rushing over to them.
The chicken let out an ear piercing howl followed by the others that are following it. Seems like it is pissed off.
As the chickens neared the two figures floating into the sky. Not!
They are Wyverns!
The handsome young man raised his right hand and said {Heaven's Wrath - Rain of Death}!
Right after, the black smoke dissipated only to to be changed into a dark cloud which quickly formed. Lightning roared making the chickens stopped and stare at the clouds above with a frightened expression on their faces.
They may be called 'Monsters' but monsters still possesses 'Instinct'.
With the chickens 'instinct' telling them that the cloud above means danger. They all tried to fly away, away from death.
But, are they faster than lightning? NO!
Lightning roared and not long after, rain of lightning descended from the sky hitting the chickens to death as their body charred into black but the lightning didn't stop. It continued after killing all the chickens that fell into the ground and also hit the monster on the ground.
The rain of lightning continued, hitting the monsters that are on the ground, dead. Not long after, the lightning stopped. It killed hundreds but not all for there are at least a million of them and some are lucky enough to dodge the lightning before it hit them.
[ Congratulations host for reaching Level 2 ] Notified the system
'Level 2? Aren't I already at Level 180? What do you mean system?' asked the young man who is known as Silver.
"I think its a restriction," said the Goddess.
[ Answering to host... Goddess Daisy is right ]
"Okay, tell me the restrictions," said Silver as he looks down on the monsters that are on the ground.
[ Restrictions... Newly placed by the Dream Creator...
In each verse the host travels into, the host must follow the rules.
Example: If the host goes into a game verse, he will start at Level 1.
The Verse host is in right now has its own rules.
Example: Gods and Goddesses prowess are sealed when they descend.
Now for host Restrictions:
The host must start from Level 0, according to the World Law.
But worry not host, your real Level won't really drop, just following the World Law.
The host can level up in this verse and the level ups he can make and get will be 'stacked' up to the hosts' current level (Which is sealed by the moment)
Other Restrictions will be given at a later date ]
'Hmm... Then what about me going inside a dungeon? Am I restricted?'
[ Answering to host... It is a rule host ]
'Okay. Got it. Break that rule!'
[ Affirmative!... {Rule Breaker} skill Activated! Breaking all the world's rule... 3,2,1... Done ]
'Great! If I can't explore the dungeon and kill, how am I suppose to level up! Thanks, {Rule Breaker} and Father'
Hearing what the system just informed and how Silver broke it, Goddess Daisy giggled and said. "Seems like father really gave you a real cheat of a skill"
"Right, seems like father really cares" answered Silver with a smile.
"So, what to do about those monsters?" asked Goddess Daisy as she looked at the monsters that are on the ground and sky.
Silver thought of something then said, "Why don't I kill them all?"
The Goddess smiled playfully, knowing what Silver meant.
Goddess Daisy waves her hand and golden light gushed out of her body. The golden light enveloped all the monsters on sight and as soon as they get enveloped in the golden light, they all disappeared!
Soon right after the monsters disappeared, the earth rumbled and shook. Cracked appeared on the ground as it became larger as it expands.
Not long after, a building/tower rose from the ground, it rose at a fast pace. Soon, a tower with hundreds of meters high came into their sight as it stopped rising up.
The Goddess not really knowing about Danmachi Verse, said, "I've placed all the monsters inside. Let's call it, Babel" with a smile on her face.
With mouth agape, wide eyes with a look of disbelief, Silver shouted,
"TTE!!
MATTE!
Did you just created the dungeon that will be known as Babel and be the dungeon the adventurers in Orario will explore in the future!?"
The Goddess blinked her eyes and looked at Silver. She asked, "Orario?" as she tilted her head to the left side.
Silver facepalmed.
Seems like she didn't even know about the world they are currently at!
And by coincidence, she created the Dungeon that will be known as Babel!
------------------------
Superior Realm...
The Dream Creator and his father are drinking as they watch Silver and Daisy.
The Dream Creator...
Hearing about the {Rule Breaker} Skill, spurted out the liquor that was on his mouth.
Facepalming. He thought,
Rule Breaker!? How could I forget!
I don't know much about Danmachi...
Only watched the anime so I'll try to improvise...